Functional Check of the System

Functional check of the system

(This check should be carried out only if maloperation is suspected, if the engine performance is poor, in the event of rough running, and when adjusting the ignition timing.)




The system incorporates a self-diagnostic function. If this is used for the functional check, a test unit with LEDs must be connected to the test socket, located forward of the electrical distribution box.

1 Connect test unit 8394058. Note: The ignition must be switched off.

2 Switch on the ignition and start the engine. Check that the fault indication LED (green) is alight for about 2 seconds while the starter motor is running.

3 Run the engine until it has reached normal operating temperature. At some time during the warming-up period, increase the engine speed briefly to more than 2300 r/min.

4 Run the engine at idling speed and check the LEDs. If the LEDs are flashing, count the number of flashes in one sequence. Then determine the fault from the fault-tracing table. (The flashing rate of the green LED corresponds to the rate of flashing of the "CHECK ENGINE" warning lamp. But knocking indication is provided only in the test unit by flashing of the red LED.)